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如何利用iview的Table组件实现将表格的列合并

不言asal: 2018-08-15 15:34:1816585semak imbas

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iview的Table组件表头分组

需求说明

合并表头
合并列，展示[合计]

最终呈现的效果

问题

表头有重复的key，数据如何匹配
实现合并列——需要修改Table组件来实现

1、合并表头

根据iview提供的demo可以看出，表头的编辑是比较容易的，只需要根据格式编写即可。

问题：表头有重复的key，表头和表数据如何匹配
解决：

需要分组的表头 key_供货人ID
需要分组的表数据 key_供货人ID

[
    {
        "width":"200",
        "align":"center",
        "title":"物品名称",
        "ellipsis":true,
        "key":"name",
    },
    {
        "width":"100",
        "align":"center",
        "title":"数量",
        "ellipsis":true,
        "key":"purchaseAmount",
    },
    {
        "width":"166",
        "align":"center",
        "title":"lyy369",
        "ellipsis":true,
        "key":"supplier_11113173785",
        "children":[
            {
                "width":"100",
                "align":"center",
                "title":"单价(元)",
                "ellipsis":true,
                "key":"quoteUnitPrice_11113173785",
            },
            {
                "width":"100",
                "align":"center",
                "title":"总计(元)",
                "ellipsis":true,
                "key":"quoteTotalPrice_11113173785",
            }
        ]

    },
    {
        "width":"166",
        "align":"center",
        "title":"私人定制",
        "ellipsis":true,
        "key":"supplier_11113173838",
        "children":[
            {
                "width":"100",
                "align":"center",
                "title":"单价(元)",
                "ellipsis":true,
                "key":"quoteUnitPrice_11113173838",
            },
            {
                "width":"100",
                "align":"center",
                "title":"总计(元)",
                "ellipsis":true,
                "key":"quoteTotalPrice_11113173838",
            }
        ]
    }
]

[
    {
        "name":"手动添加",
        "purchaseAmount":"9887.00",
        "quoteTotalPrice_11113173785":"494350.00",
        "supplierId_11113173785":"11113173785",
        "quoteAmount_11113173785":"9887.0000",
        "quoteUnitPrice_11113173785":"50.0000",
        "quoteTotalPrice_11113173838":"988700.00",
        "supplierId_11113173838":"11113173838",
        "quoteAmount_11113173838":"9887.0000",
        "quoteUnitPrice_11113173838":"100.0000"
    },
    {
        "name":"2018年7月9日",
        "purchaseAmount":"1.00",
        "quoteTotalPrice_11113173785":"50.00",
        "supplierId_11113173785":"11113173785",
        "quoteAmount_11113173785":"1.0000",
        "quoteUnitPrice_11113173785":"50.0000",
        "quoteTotalPrice_11113173838":"100.00",
        "supplierId_11113173838":"11113173838",
        "quoteAmount_11113173838":"1.0000",
        "quoteUnitPrice_11113173838":"100.0000"
    },
    {
        "name":" 中国移动取消流量“漫游”费",
        "purchaseAmount":"563.00",
        "quoteTotalPrice_11113173785":"28150.00",
        "supplierId_11113173785":"11113173785",
        "quoteAmount_11113173785":"563.0000",
        "quoteUnitPrice_11113173785":"50.0000"
    },
    {
        "name":" 中国移动取消流量“漫游”费",
        "purchaseAmount":"23.00",
        "quoteTotalPrice_11113173785":"1150.00",
        "supplierId_11113173785":"11113173785",
        "quoteAmount_11113173785":"23.0000",
        "quoteUnitPrice_11113173785":"50.0000",
        "quoteTotalPrice_11113173838":"2300.00",
        "supplierId_11113173838":"11113173838",
        "quoteAmount_11113173838":"23.0000",
        "quoteUnitPrice_11113173838":"100.0000"
    }
]

2、实现[合计]的合并列展示

此处需要更改iview的Table组件的源码。

数据格式如下，控制行，控制列，控制合并个数，控制展示数据

[
    {// 每一条，表示有一行
        "total":"合计", // 展示的数据

        "key":"total", // 表头的key
        "align":"center",
        "ellipsis":true,
        "colspan":"2", // 需要计算合并列的个数
        "tableBody":[ // tableBody.length 表示有多少个值
            {
                "total_11113173785":"523700.00", 

                "key":"total_11113173785",
                "colspan":"2",
                "align":"center",
                "ellipsis":true
            },
            {
                "total_11113173838":"991100.00",
                
                "key":"total_11113173838",
                "colspan":"2",
                "align":"center",
                "ellipsis":true
            }
        ]
    }
]

以下是修改的源码，暂时不支持表格的鼠标移入等事件
```
   table-body.vue:33
```

<!-- ++++++++++++++++ 2018年8月7日16:49:00 合并列单元格 start +++++++++++++++++++++ -->
<template v-if="(index+1)==data.length">
    <template v-for="(colSpanColumn, colSpanColumnIndex) in colSpanColumns">
        <table-tr
            :row="colSpanColumn"
            :key="colSpanColumn.key"
            :prefix-cls="prefixCls"

        >
            <td :colspan="colSpanColumn.colspan" :class="alignCls(colSpanColumn, colSpanColumn.tableBody)">
                <Cell
                    :natural-index="Number(colSpanColumnIndex+data.length)"
                    :index="Number(colSpanColumnIndex+data.length)"
                    :prefix-cls="prefixCls"
                    :row="colSpanColumn"
                    :key="colSpanColumn.key"
                    :column="colSpanColumn"
                ></Cell>
            </td>
            <template v-for="(colSpanBody, colSpanBodyIndex) in colSpanColumn.tableBody"  :class="alignCls(colSpanColumn, colSpanBody)">
                <td :colspan="colSpanBody.colspan" :class="alignCls(colSpanBody, colSpanBody)">
                    <Cell
                        :natural-index="Number(colSpanBodyIndex+data.length)"
                        :index="Number(colSpanBodyIndex+data.length)"
                        :prefix-cls="prefixCls"
                        :row="colSpanBody"
                        :key="colSpanBody.key"
                        :column="colSpanBody"
                    ></Cell>
                </td>
            </template>
        </table-tr>
    </template>

</template>
<!-- ++++++++++++++++ 合并列单元格 end +++++++++++++++++++++ -->

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